This is the README File This project contains the following files: 1) art.m - ART for solving equations 2) sart.m - SART update equations for finding solution of system of linear equations 3) back_projection.m - back projections algorithms script 4) Hamming.m - Hamming filter 5) Hann.m - Hann filter 6) ramp.m - ramp filter 7) shepp_logan.m - shepp logan filter 8) NWFBP.m - noise weighted filter 9) test.m - script to run the experiments. 10) report.pdf - report for this project 11) This README ------------------------------------------------------------------------ Instructions to run the files: 1) To run Back Projection algorithms: reconstructed_img = back_projection(sinogram,angle, f, 'bp') sinogram - sinogram image angle - if the angle 0-180 is divided in say x steps then angle = x:x:180 f - filter name [hann, hamming, shepp_logan, ramp, none, NWFBP] 2) To run ART and SART reconstructed_img = back_projection(sinogram,angle, 'none', 'art') // for ART reconstructed_img = back_projection(sinogram,angle, 'none', 'sart') // for SART sinogram - sinogram image angle - if the angle 0-180 is divided in say x steps then angle = x:x:180 ------------------------------------------------------------------------ References: [1] - Respective Wikipedia pages to get the exact formula of the filters.